Electrode for electrolytic cells.



No. 674,927. Patented May 28, mm. M. mum".-

ELECTRODE FOB ELECTROLYTIC CELLS.

(Application filed Mar. 16, 1900.) (N o M o d a I I) 2 Sheets-Shoat l.

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No. 674,927. I Patented May 28, IQDI.

' M. MAUBAN.

ELECTRODE FOB ELECTROLYTIC CELLS.

(Application filed Mar. 16, 1900.) (No Model.) 2 Sheets-Sheet z.

w: uomus Pains m wow-Limo wumncrou o c Nrrnn STATES MAX IWIAURAN, OF NIAGARA FALLS, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO OASTNER ELECTROLYTIC ALKALI COMPANY, OF

VIRGINIA.

ELECTRODE FOR ELECTROLYTBC CELLS.

SPECIFICATION forming part of Letters Patent No. 674,927, dated May 28, 1901.

Application filed March 16, 1900. Serial No. 8,968. (No model.)

To aZZ whom, it may concern:

Be it known that 1, MAX lVIAURAN, engineer, a citizen of the United States, with residence and address at Niagara Falls, in the county of Niagara and State of New York, have invented certain new and useful Improvements in Electrodes for Electrolytic Cells, of which the following is a specification with drawings.

While my invention is designed particularly for that class of electrolytic cells which are set forth in United States Patents to Castner, Nos. 518,135 and 528,322, it is not by any means so limited. It relates particularly to the electrodes.

For cathodes I use, preferably, anumber of parallel-rolled iron bars or rods; but instead of bolting or riveting them together, thereby producing defective joints, I cast the terminals directly onto the ends of the rods and secure an almost perfect union at minimum expense.

In the accompanying drawings, Figure 1 is a plan view of a cell provided With my improvements. Fig. 2 is a vertical section of the same. Fig. 3 is a longitudinal section upon the central plane of one of my anodes. Fig. 4 is a central vertical section upon the central plane of the cathode. Fig. 5 is a perspective view of one of my anodes. Fig. 6is apartial view in perspective of one of the cathodes,and Fig. 7 is a cross-section thereof.

0 is the bottom of the cell.

D represents the ends, andE represents the sides, of the cell.

H represents the longitudinal partitions of the cell, the lower edges of which extend into the mercury in the longitudinal grooves e,and thereby seal the electrolytes in the several compartments of the cells, as is well understood.

The anodes I are of inverted-T section, as shown in Fig. 7, and preferably of carbon, for the peculiar construction of which I have filed a separate and divisional application in compliance with the Patent Office requirements, Serial No. 20,264, filed June 14:, 1900. The covers of the cells J are slotted longitudinally to receive the upper portions or shanks f of these carbons, together with the lead blocks K, which are cast onto the carbons and project laterally, as indicated at g.

L represents blocks or strips of wood of such thickness and proportion as to slip under the lead blocks and support the anodes. Upon the lead blocks K are screw-threaded binding-studs h, which secure the connectingbars or unions 2', directly or indirectly connected to the positive conductor. The anodes are sealed in the covers J by resinous or other suitable cement.

The cathode 1 preferably consists of fiat wrought or rolled iron bars j, secured apart at intervals by transverse bolts it and cast directly into the terminals Z.

To secure an intimate union of cast-iron and wrought-iron and of low electrical resistance, I prevent the chilling of the cast-iron during the'casting operation by the following expedient: The bars j are set in place and spaced by washers and united by the bolts 76. Their ends are rabbeted and then inserted in two flasks 0r molds constructed each with an ordinary pouring-hole and in addition thereto an outlet situated slightly below the upper portion of the pouring-hole, so that the molten iron when it is poured in at the pouringhole will fill the flask and run'out at the said outlet. By pouring an amount of iron largely in excess of that required for the casting and continuing the pouring for some considerable time the ends of the rods are thoroughly heated and brought into very intimate union with the molten iron about them, producing a joint which is secure and strong for electrical purposes and far less fragile than an ordinary casting.

Having thus described myinvention, what I claim is- 1. In combination in an electrode for electrolytic cell, a series of parallel wrought-iron bars or rods provided with intermediate spacing-pieces for holding them suitably separated, and a terminal of cast-iron cast around and embedding the ends of the Wrought-iron bars or rods, said terminal being provided with a shank extending at an angle to the length of the said bars or rods, whereby when the bars or rods lie horizontally in the bath at their ends in one or more cast-metal terminals cast directly on the ends of said slats 15' or bars and intimately united therewith without the interposition of a chilled surface at the union of the bars and the casting, substantially as set forth.

Signed this 6th day of March, 1900,, at the 20 city of Niagara Falls, New York.

MAX MAURAN.

Witnesses:

v E. F. SGHUYLER,

H. A. SMITH. 

